79921940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{81553}}^1$

素因数の和:81576

約数の個数: 36

約数和(自身を含む): 195240276

約数和(自身を除く): 115318336

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 81553, 163106, 326212, 407765, 570871, 815530, 1141742, 1631060, 2283484, 2854355, 3996097, 5708710, 7992194, 11417420, 15984388, 19980485, 39960970, 79921940]

約数ペア:

[(1, 79921940), (2, 39960970), (4, 19980485), (5, 15984388), (7, 11417420), (10, 7992194), (14, 5708710), (20, 3996097), (28, 2854355), (35, 2283484), (49, 1631060), (70, 1141742), (98, 815530), (140, 570871), (196, 407765), (245, 326212), (490, 163106), (980, 81553)]